Fetch Softworks

New sftp host key (2 posts)

• Started 17 years ago by greglyon
• Latest reply 17 years ago from Scott McGuire

• greglyon Member

  A server I connect to via sftp has been moved to a new machine that has a new host key, which I have.

  How can I get rid of or replace the old host key so that I can connect?

  Thanks

  Posted 17 years ago #

• Scott McGuire Administrator

  Hi,

  You need to either delete or edit the ~/.ssh/known_hosts file.

  To delete the known_hosts file:

  1) In the Finder, choose Go > Go to Folder. The Finder will display a prompt.
  2) Type "~/.ssh" (without the quotes) into the prompt, and click the Go button. The Finder will display a window showing the contents of the .ssh folder.
  3) Select the known_hosts file, and drag it to the Trash.
  4) Close the window.

  After you delete the file, the new host key will get added back to the known_hosts file automatically.

  If you feel you really know what you're doing, you can open the known_hosts file in a text editor and just delete the line that refers to the server. However, since host keys are usually automatically added back to the known_hosts file, it's generally safe to delete it and all your servers will just re-add the keys as you connect to them.

  Thanks, and let us know if you have any further questions.

  Scott McGuire
  Fetch Softworks

  Posted 17 years ago #